Preparation of porous silicon composite anode material coated with open pore polymethyl acrylate and its electrochemical performance as a carbon source

Liao, Simin; Shi, Xiang; Xu, Yefei; Liu, Mengyue; Ding, Nengwen; Li, Xiaocheng; Li, Zhifeng

doi:10.1039/d3nj04109c

Cited by 4 publications

(1 citation statement)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The equation can be expressed as follows: i = a v b log ( i ) = log ( a ) + b nobreak0em0.25em⁡ log ( v ) The values of a and b in eq are determined through linear fitting by eq . When b = 0.5, diffusion controls the lithium storage kinetics, while when b = 1.0, pseudocapacitance is responsible. , As shown in Figure b, the b values (slope) of peak A and peak B are found to be 0.44 and 0.45, respectively. This indicates that diffusion-dominated lithium storage kinetics substantially govern the discharge–charge process of Si&AG electrode, and the possible influencing factor is the presence of Si submicrometer-particles deposited on the graphite surface.…”

Section: Resultsmentioning

confidence: 90%

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries

Dong,

Liu,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Preparing Si/C composite material with uniformly dispersed Si particles and stable electrode structure remains a huge challenge. In this study, a Si/C composite material with reinforced interfacial interaction (Si&AG) was successfully synthesized. Utilizing the HF-plasma technique, the metallurgical Si with large particle size was evaporated and nucleated, resulting in nanocrystallization and uniform dispersion onto the graphite surface. More importantly, a robust but thin SiC layer formed at the contact region ensures a steadfast adhesion of Si onto graphite. As anode for lithium-ion batteries, Si&AG exhibits a remarkable ICE of 87.9% and an impressive capacity retention of 78.1% after 500 cycles at 0.1 A g −1 . Even under high current densities, it consistently demonstrates a remarkable electrochemical performance (149.6 mAh g −1 at 3 A g −1 ). These exceptional properties can be attributed to the reinforced interfacial interaction facilitated by a robust but thin SiC layer, which endows the electrode with a stable structure and consequently performs excellent electrochemical performances.

show abstract

Section: Resultsmentioning

confidence: 90%

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries

Dong,

Liu,

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

Carbon‐Based 3D Architectures as Anodes for Lithium‐Ion Battery Systems

Aslam,

Ahsan Waseem,

Zhang

et al. 2024

ChemPlusChem

View full text Add to dashboard Cite

Graphite, with its exceptional cyclic performance, continues to dominate as the preferred anode material for lithium−ion batteries. However as high−energy application gains momentum, there is growing demand for higher capacities that alloying/de alloying and conversion type anode materials can offer. Despite their potential, these materials are plagued by challenges such as volumetric fluctuations, low conductivities, and poor cyclic stability. Carbon nanostructures, on the other hand, show tremendous promise with their low volume expansion, high ion diffusion rates, and excellent conductivity. Nevertheless, their limited areal and volumetric densities restrict their widespread utilization. To address these limitations, various strategies such as doping, composite formation, and structural modification have been proposed. This article provides a succinct overview of carbon nanomaterials and their electrochemical performance as 3D carbon–based anodes, along with a comprehensive analysis of the strategies employed to overcome associated challenges while evaluating their potential prospects in the field.

show abstract

Structural design and investigation of Ti3C2 MXene as a conductive interlayer for improving the lithium-storage performance of PSi@C anode material

Ding,

Shi,

Liao

et al. 2024

Electrochimica Acta

View full text Add to dashboard Cite

Preparation of porous silicon composite anode material coated with open pore polymethyl acrylate and its electrochemical performance as a carbon source

Abstract: Silicon (Si) is considered an ideal candidate for the next generation of lithium-ion batteries owing to its high specific capacity, low lithiation/delithiation potential, and abundance.

Cited by 4 publications

References 44 publications

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries

Carbon‐Based 3D Architectures as Anodes for Lithium‐Ion Battery Systems

Structural design and investigation of Ti3C2 MXene as a conductive interlayer for improving the lithium-storage performance of PSi@C anode material

Contact Info

Product

Resources

About